Sure, one example that I'm familiar with is frequency entangled photons produced by parametric scattering of exciton-polaritons (it's scattering of quasiparticles in a quantum well which are strongly coupled to a photon field). Although, I actually can't recall if I've seen a convincing experimental demonstration of this.
I have seen a bunch of experimental results which demonstrated entanglement using integrated silicon waveguides, where there are two waveguides that overlap in an effective "beam splitter" section then separate again (this is analogous to how you can get entanglement from an Hong-Ou-Mandel setup, which is two (EDIT: identical photons) incident on a 50/50 beam splitter which produces so-called "path entangled" photons).
Here's a recent short review paper which goes over some additional semiconductor devices which can produce entangled photon pairs[1].
I have seen a bunch of experimental results which demonstrated entanglement using integrated silicon waveguides, where there are two waveguides that overlap in an effective "beam splitter" section then separate again (this is analogous to how you can get entanglement from an Hong-Ou-Mandel setup, which is two (EDIT: identical photons) incident on a 50/50 beam splitter which produces so-called "path entangled" photons).
Here's a recent short review paper which goes over some additional semiconductor devices which can produce entangled photon pairs[1].
[1] https://arxiv.org/abs/1702.08823